For 2010 and newer navigation DVD's, BMW changed their provider for Maps from Navteq to Tele Altas. They now release them in 2 Regions (East and West) and are 2 separate discs. You will burn each of them separately and select the slowest burn speed your computer offers. After you're finished burning the DVD, put whichever region pertains to you in, you'll see a notice on the screen saying new maps detected and to shutdown your idrive for 5 minutes (or something similar). Turn the car off and wait, or you can push both eject buttons and the mute button all together and it will reboot your idrive system and you'll be up and running with the new maps.
*EDIT* You do know you need to the burn the the ISO files with a program like Nero or any other one that handle ISO file (an ISO is image of the info on the original dvd). You can't just add it to a dvd as a file and burn it, it won't work. I'm not trying to insult anyone's intelligence, just thought I would cover that and potential save someone from wasting dvd's and wondering why they don't work.
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